Stippling device



.1111. 16, 1951 W, ND 2,538,241

STIPPLING DEVICE Filed June 25, 1947 IN V EN TOR.

CHARLES W. Gwumcmd Patented Jan. 16, 1951 UNITED STATES PAT OFFICE 25383241 I STIPPLING DEVICE.

Charles 'W. Guimond Grosse-PointeWoods, Mich, assignor to Drum Products Corporation, St. Glair. Shores-,.lVIich., a. corporation ofsMichigan.

Application .Jjme25, 1947., SeriaLNo. 756,960

2' Claims. 1o

This invention relates to devices for' improving the appearance ofpainted surfaces and particularly to improvements in paint stipplers.

In the decorating of walls and. ceilings in homes, offices and buildings, surfaces. are often stippled'l to improve. the appearance and to remove the brush marks from freshlypainted surfaces. Roller types of stipplers have: been used for stipplin-g large areas of the walls and ceilings but as a. result of their construction it hasbeen practically impossible for these devices to work close to corners and molding strips. Upon com pletion of. the roller stippling operation there was left a band of unstippledsurfaicing of from one half to three quarter inches wide in the corners and adjacent to molding strips. Either these bordering areas were left unstippled or the workman. had. to use a brush and tediously sti'pple these areas in. An important object of thisinvention is to provide a stippling device of novel construction which withone stroke will stipple bordering areas in the corners. and along molding'strips' and other projecting portions of the walls and ceilings. Another important object of. the invention is to providea deviceof this character having a freely rotatab e head of novel formation which enables the head to enter confined spaces such as the wall corners or along molding strips of a. wall and quickly impart the desired stippling effect" without applying paint to any other surface portion than that intended. A further important object of the invention isto' provide" a novel device of this character which isv formed of inexpensive parts easy to assemble for use:

In carrying out the invention the. rotatable head of the device is provided with a novel conical formation and. so mounted with respect toa handlethat thev device may be held so that outer wider diameter of the head may enter a corner between two. angularl'y related surfaces. andupon movement or stroke in one direction will stipple the'area inthe corner. In one form ofthe" invention illustrated herei-n,.the head is, provided with an. improved detachable covering, which. is so constructed that. it. may be; slipped" on the handle and automatically retainedin position andwhich when worn. may be conveniently replaced, by another. covering. In another form. ofv the invention, the.rotatable. conical shaped head maybe formed. of yielding material and provided with novel. projections which may. be. shaped to produce by suction the desired stippling effect. In .a third modification. of the invention the head of the device may be composedlof two freely rotatrable conical" shaped members adapted to simult'aneously stipple the bordering areas of two abutting angularly related surfaces in one stroke of the device;

Various other objects, advantages and meritorious features will become more fully apparent from the following specification, appended claims and accompanying drawings wherein:

Fig. 1 is a perspective View of the device of this invention illustrating the manner in which it operates in a corner formed: by two abutting surfaces,

Fig. 2 is an end view of the device illustrating the manner of operating the device in a corner similar'to that of Fig. 1,

Fig. 3 is an exploded viewshowing the parts of the device in the order of their assembly,

Fig. 4 is an assembled view of the deviceof'Fig. 3- showing the head in vertical cross section,

Fig. 5' is a vertical cross section through the operating head of a modification of the device employing two juxtaposed freely rotatable conical members,

Fig. 6 is a vertical sectional view through a modified form of operating head having the covering material permanently secured thereto,

Fig. '7 is a vertical sectional view through a modified form of operating head composed of resilient material,

Fig. 8 is an enlarged detail view of a portion of the conical surface of the head of Fig. 7 taken along line 8-8 thereof, and

Fig. 9 is'a sectional view taken along line Fi9 of Fig; 8.

In the embodiments. of; the invention i1l1istrated in the drawing a desirable form is illustrated in Figs. 1 to 4 inclusive and includes a handle. in havinga blade. member of metal IE or like material projecting from one end thereof. Rotatably secured to the outer end of the blade I2 is a stippling head of generally conical shape. The head. comprises. a base portion 94 of. truncated formation. having a back flat face i t and a conical side wall I8. which extends at an acute angle of approximately 455 to the back face. The base 14' of. the head is provided with an outer covering in the form of. a hood 2.9 which forms a separate part of the assembly as indicated in Fig. 3. This covering may be composed of any suitable material for'providing a stippling effect. One desirable type of material is woven cloth, pile fabric, or' carpeting having spaced circular strands 22 of resilient material such as rubber or the like incorporated therein. These strands yieldingly collapse the hood upon the base portion M when fitted thereover.

The head of thedevice is constructed for quick assembly on the handle and for free rotation relative thereto. As shown in Fig. 3 the base I4 is provided with a bore 24 of reduced diameter which opens out on the base or back face It thereof and a wider bore 26 which opens out on the apex of the base. The two align with one another to form a passage entirely through the base member l4 from the apex end to the back face. Received through the passage formed by the two aligning bores 24 and 26 is an arbor or rivet 28 having a reduced end section 30 which is adapted to enter the hole 32 formed in the outer end of the supporting blade I2. The end of the rivet opposite to the reduced end section 30 is provided with a head 32 which is adapted to bear against the shoulder formed by the two bores 24 and 26. Received over the rivet member is a sleeve or ferrule 34 having a flange 36 which is adapted to abut the rear face [6 of the base portion [4 of the head. Between the base l4 and the blade i2 is a spacer member 38 which is provided with a hole 40 for receiving the reduced end section 36 of the rivet member.

Fig. 4 illustrates the assembly of the parts and as shown therein the spacer member 38 is disposed between the back'face [6 of the base and the apertured end of the blade 2. The ferrule 34 is fitted tightly within the reduced bore 24 so that the base member is jointly rotatable therewith. The ferrule is freely rotatable upon the larger portion of the rivet member 28. The outer end of the reduced section 3|] of the rivet member following its introduction into the hole 32 of the blade is peened over as indicated at 42 to secure the head to the blade l2. The covering material 2i! is shown in Fig. 4 in assembled relation upon the blade I4. The covering extends over the opening formed by the larger bore 26 as shown in Fig. 4. The outer margin or edge 43 of the covering is lapped over the inner face [6 and by virtue of the resilient strands provided in the covering it is retained in position upon the base i4.

Figs. 1 and 2 illustrate the operation of the device in a corner formed by two angularly related abutting surfaces. One surface 44 has just been freshly painted. The other surface 46 may be a freshly painted surface of an adjacent wall or the edge of a molding strip projecting from the surface of the wall. Heretofore when roller stippling devices have been used there has been left an unstippled area or band indicated at 48 along the length of the corner formed by the two abutting surfaces. The handle of the device is grasped by the hands of the operator and the conical shaped head is introduced into the corner in the manner illustrated in Fig. 2 so that the back face It thereof extends at an acute angle to the two abutting surfaces and intersects the corner formed thereby. This brings the wider diameter of the head into the corner formed by the two abutting surfaces and the covering material of the conical side wall I8 against the unstippled band or border 48 along the corner. One

rotate freely. It is to be noted that at the acute angle at which the device operates the folded or lapped over portions of the covering material 20 does not engage the surface 46 during the operation.

In Fig. 5 there is illustrated a modification of the invention wherein the head is composed of two conical shaped members mounted for independent rotation about a common shaft. Such a device is adapted to be used for simultaneously stippling the bordering areas of two wall surfaces forming a corner of approximately Referring to Fig. 5 the handle portion It carries the supporting blade member l2 as previously described. Extending transversely through the outer end portion of the blade [2 is a member or arbor 50 which may be a headed bolt threaded for receiving a nut 52. The two conical members are indicated at 54-54 and correspond in shape and formation to one another and to the operating head previously described. Each conical member is bored out similarly to the head of the previous modification and a ferrule 56 is fitted into the reduced portion of the bore in the manner previously described. The ferrule 56 of each head 54 is of wider diameter than the bolt member 50 so that the conical members 54-54 have a slight angular play with respect thereto and may be inclined toward one another the manner shown in Fig. 5. Encircling the bolt 53 on opposite sides of the blade l2 are two spacer members 58-458.

Normally the two heads of the device of Fig. 5 assume the position shown in dotted outline therein. However, when the head is introduced into a corner formed by the two abutting surfaces and pressed lightly therein the two. heads 5454 will wedge in the corner and assume the angle with respect to one another as shown in full lines. Thereafter the device may be stroked in one direction or the other along the corner to impart the desired stippling effect to the bordering areas of the two abutting surfaces. The two heads 54-54 are so constructed that when they assume their angular relationship shown in Fig. 5 the substantially abutting edge portions thereof assume an angle of approximately 90. As in the previously described embodiment of the invention the two heads 5454 may each be provided with a covering material 60 which will impart the desired stippling effect.

In Fig. 6 there is illustrated a slightly diiferent type of conical head in which the covering material is permanently secured thereto. As shown the conical head 62 is provided with a covering material 63 of carpeting or the like which is secured by a layer of glue 64 or other suitable adhesive material to the conical surfaces of the head. The head may be mounted on a bolt 65 which is freely rotatable in the apertured end of the supporting blade 12 and secured thereto by a nut 66.

In Fig. 7 the conical head is shown composed entirely of yieldable or resilient material. A body 68 of rubber or like material which will withstand deterioration in the presence of paint is shaped into the conical formation of the heads I4, 54 and 62 previously described. This body of resilient material is provided with axial bores 10 and 12 which correspond in size and function to the bores 24 and 26 previously described. An important feature of the type of head illustrated in Figs. '7 to 9 is the character of the surface which imparts the stipple to a freshly painted surface. Referring particularly to Figs. 8 and 9 the conical side wall of the rubber body is provided with a plurality of closely arranged projections 14 which are formed on the same material as the body 68 and are integrally joined thereto. Each projection '74 is indented or formed with a concave recess 16 as shown in Fig. 9 on the outer end thereof. As these projections press into the freshly painted surface the concave ends thereof are slightly compressed and as a result create a suction which as the projections leave the painted walls form the stipple that is desired. 1

While there has been described, what is at present considered to be, certain preferred embodiments of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention and it is, therefore, desired in the appended claims to cover all such changes and modifications as fall within the true spirit and scope of the invention.

What I claim is:

1. A device for stippling corner areas of wall surfaces comprising, in combination, an elongated handle, a pair of conical shaped rollers, means for mounting said rollers on opposite sides of one end of the handle and providing rotation thereof about axes substantially in alignment with one another and substantially perpendicular to the plane of the handle, and means on the conical side wall of each roller for imparting a stippling effect to the surface upon which the rollers are rolled.

2. A device for stippling corner areas of wall surfaces comprising, in combination, an elongated handle, a pair of conical shaped rollers,

means for connecting said rollers to opposite :0

6 thereof located adjacent to the end of the handle, said means journaling each roller for rotation about its respective axis and providing an angular movement of the rollers relative to the handle so that the base ends of the rollers may be brought into substantial engagement beyond the end of the handle to which they are connected whereby both rollers may simultaneously engage the adjacent marginal areas of two angularly extending surfaces of a corner of a wall, and means on the conical side wall of each roller for imparting a stippling effect to the surface upon which the roller is rolled.

CHARLES W. GUIMOND.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 555,490 Barnes Mar. 3, 1896 1,445,627 Kissner Feb. 20, 1923 2,321,511 Piercy June 8, 1943 2,368,513 Adams Jan. 30, 1945 FOREIGN PATENTS Number Country Date 890/31 Australia Jan. 26, 1932 435,377 Great Britain Sept. 19, 1935 

